Package insert adaptable for the mounting of fine filamentous thread in annular package form



prll 4, 1939. Q A4 HUTTINGER 2,153,420

PACKAGE INSERT ADAPTABLE FOR THE MOUNTING OE FINE FILAMENTOUS rI-HR'EAD IN ANNULAR PACKAGE FORM Filed DGO. 24, 1936 A fran/vtr:

Patented Apr. 4, 1939 y UNITED STATES PATENT OFFICE Charles A. Huttinger, Lakewood, Ohio, assignor to Acme Rayon Corporation, Cleveland, Ohio,

a corporation of Ohio Application December 2.4, 1936, Serial No. 117,620

3 Claims.

My invention particularly relates to improved forms of inserts adaptable for mounting fine lamentous rayon thread in annular package form, such as cakes, wound spools, Wound bobbins, and other annular packages of symmetrical or balanced formation, for the purpose of liquid treating the thread. The rayon thread is collected in such annular package forms by spinning machines from the precipitating bath in which the rayon filaments are set up. The rayon thread as so collected comprises a comparatively larg-e number of filaments Which are twisted as some forms of packages are being collected and are collected untwisted in other forms of packages. My invention is an improvement upon the forms of package inserts shown and described in my pending applications, Serial Nos. 724,114; 70,047; 72,480; and 73,145.

The treatments to which the rayon packages are subjected when mounted upon my improved inserts are those to which the rayon is necessarily subjected, before the precipitated and package-collected thread can be considered a nal product ready for the market, such as various water washings, desulphurizing, bleaching, oiling, sizing, dyeing, drying, and other purifying and finishing operations. Forpurposes of illustration, I showin the accompanying drawing and herein describe three forms of my improved insert which serve to support a cake of rayon While the same is being subjected to the above-mentioned operations.

The objects of the invention are to provide package inserts which assist in effecting the aforesaid operations in a thorough manner and economically, and Without breaking or otherwise materially damaging the thread, while at the same time preventing the creation of any immobile areas in any portion of the package, or unequal strains in different portions of the package, either during the liquid treatments or during the drying of the package, Which immobile areas and strains result in a non-uniform dyeing of the thread of which the package is comprised. The obviating of the creation of immobile areas and strained conditions in the package produces even shrinkage during the drying of the package. This even shrinkage is obtained by even one drying operation, thereby obviating th-e necessity of re- Wetting the package and again drying it in order to improve the uniformshrinkage factor. Furthermore, if some portions of the package dry in an immobile condition, or have strains set up therein by some of the purifying and drying operations, antecedently to the dyeing thereof, different portions of the thread in the package then have different reective indexes and give different color reactions or have barred effects when the threadis dyed, resulting in a dyed thread of nonuniform color. v

Primarily, my improved insert effects the loosening up of the package, when treating the latter in its initial collected form, thus providing for all parts of they package their respective natural scopes of free play, relative to other parts ofthe package, thus effecting a natural alteration of the relative positions of al1 the thread strands comprising the package. The purification of the package and the other treatments thereof are carried out without unduly impairing that tenacity and elasticity of the thread which are required for later handling and processing or use, and Without setting up local tension areas or non-uniform strains.

In effecting the aforesaid advantages, my improved inserts permit the pulsating of the package body by means of treating liquid in that the package, While mounted upon the insert, is free to move to a predetermined extent in, and under the action of, the treating liquid. The improved inserts provide for so mounting the package that different portions thereof move or pulsate differently under the action of the treating liquid; specifically, spaced transverse portions of the package react differently to the liquid treatment than the package portions intermediate said spaced transverse portions.

Improved processes of liquid-treating rayon packages, and apparatus therefor, are shown, described and claimed in my pending application, Serial No. 724,113, and the improved inserts of the instant application are adaptable for use in working such processes. It is designed in such improved processes that the direction of flow of the treating liquid shall be, or at least may be, periodically reversed, thus to pass the liquid alternately in both directions through the packag-e body, from inside out and outside in, or at least the treating liquid penetrates the package body, and tends to pass therethrough, alternately in both directions. The treating liquid is passed through the package body under any desired practicable pressure so as thereby to control to an extent the character of the treatment and the character and amount of package movement and pulsation, and the pressure may be maintained uniform or may be varied. Although the range of practicable pressures is considerabl-e, particularly by reason of the different effects of different treating liquids, and by reason of the 55 Y Y consist in making the inserts of integrallyformed differing characteristics of rayon packages made under different conditions, I preferably use a nominal pressure of from one to two pounds. Some forms of my improved inserts are of split formation, so as to provide for the convenient insertion thereof within the rayon package, in order to mount the package thereon for treatment without damaging the thread of the package, but the liquid pressures used in the liquid treatments are not great enough to materially expand orv compress the split inserts, so that the latter provide a substantially rigid support of constant dimension during the liquid treatments. Furthermore, as clearly shown and described in said pending application, Serial No. 724,113, a. plurality of inserts are tightly locked together in a vertical tier, so as to hold the inserts rigid during the liquid treatments, with a rayon Ypackage mounted for treatment on each one of the inserts. 1

When'the treating liquid passes from without the tubular package through the body thereof and into the interior of the package, my improved inserts-provide Vfor a deforming of the package by permitting portions thereof to move inwardly a predetermined distance under the pressure of the treating liquid, so as to loosen up thepackage to a degree and permit an altering of the positions of the strands or different portions of the thread comprising the package. When the treating liquid passes from within the package outwardly through the bodythereof, the

deformed package portions are moved back into their original collected form, or tend so to move, so that these package portions are pulsated or have to-and-fro movements under the action of the reversible liquid flow.

It is well understood by those vskilled in the art, that rayon packages of the character herein described are spun so that the strands thereof prevent any substantial enlargement of the package perimeter. Therefore, the pressure of the treating liquid from within the package outwardly, under any pressures practicably usable, do not bulge or deform the package outwardly so as to increase its perimeter to any material extent. However, those portions of the package which are not moved inwardly by liquid passed inwardly of the package body are adjusted somewhat outwardly during such treatment, as clearly shown in the accompanying drawing and as will be hereinafter fully described.

The improvements in ,theA forms of inserts Y shown, described and claimedV in the instant application, over those shown, described and claimed in my said pending application, Serial No. 72,480,

rubber members, preferably, hard rubber, and in making them so that they are adaptable for nesting with other like inserts in a lengthwise tier of inserts so as to 'provide for the simultaneous treatment of a plurality of axially-aligned rayon packages mounted on the several inserts.

vThe improvements in the forms of inserts shown, described and claimed in the instant application, over those shown, described and claimed in my said pending application, Serial No. 70,- 04'7,V consist in means providing large window openings through which spaced adjacent portions of the rayon package mounted on the insert may pulsate during the liquid treatment,

Y Vmeans being provided for uniformly liquid-treatspacing elements, thus efficiently to liquid-treat the package portions positioned radially exteriorly of the spacing means.

The improvements in the forms of inserts shown, described and claimed in the instant application, over those shown, described and claimed in my said pending application, Serial No. 724,- 114, consist in forming the inserts of integral rubber members, preferably, hard rubber, having integrally formed means for spacing the adjacent packages -in a series of axially-aligned packages, and in providing means in the inserts of the instant application for more uniformly liquid-treating rayon packages, specifically, means for permitting the passage of the treating liquid through the insert elements which define the several spaced package portions, thus efficiently to liquid-treat the package portions exteriorly of the spacing means.

The improvements in the forms of inserts shown, described and claimed in the instant application, over those shown, described and claimed in my said pending application, Serial No. 73,145, consist in making the inserts of integrally formed rubber members, preferably, hard rubber, having integrally formed means for spacing the adjacent cakes in a series of axially-aligned packages, also, in providing means for uniformly liquid-treating the whole rayon package, and in providing means whereby inward movement of certain package portions, under the liquid treatment, hereinafter fully described, is limited or held to a predetermined amount of inward movement.

Those elements which define the several spaced package portions, shown in applications, Serial Nos. 724,114 and 73,145, consist of Vinsert bars, transverse wire extensions, etc., between each adjacent two of which are provided elongated lengthwise openings through which transverse spaced portions of the package defined by such bars and-wires are pulsated. Radially exterior of these bars or-wires are certain package areas which may not receive eicient and satisfactory liquid treatment. Therefore, I have devised forms of inserts shown, described and claimed in the instant application which, in addition to being integrally formed of rubber and to having means for spacing the contiguous ends of adjacent packages, which spacing means are integrally formed with the insert body, also -provide for the passage of the treating liquid through the bodies of the means which define the several spaced portions of the packages mounted upon the inserts, whereby to effect thorough liquid treatment of the'rayon package areas positioned immediately exteriorly of suchrdelning means.

Two forms of the improved inserts shown, described and claimed in the instant application are of solid or non-expansible and non-contractible construction, and one form is of expansible and contractible construction.

The annexed drawing and the following description set forth in detail certain means exemplifying my improved forms of package inserts, such means constituting, however, only a few of the various forms in which the principle of the invention may be embodied. 1

In said annexed drawing:

Figure 1 is a lengthwise section of aportion of a lengthwise tier of one form of my improved solid or non-expansible andinon-contractible rubber inserthaving integrally formed package spacing means, one insert v,being shown complete in this gure, rayon cakes being shown mounted on the inserts for liquid treatment, the planes upon which this figure is taken being indicated by the line I I, Figure 2;

Figure 2 is a transverse section, taken in the plane indicated by the line 2 2, Figure 1, this view showing in full lines the cake in the form in which it is collected by the spinning machine or, if it has been deformed by a treating liquid passed therethrough previously from without the package inwardly, in the form in which it re-establishes itself, or tends to be so re-established, when the treating liquid is passed from Within outwardly; the view also showing in broken lines the forms assumed by the diiferent cake portions, or which they tend to assume, when the treating liquid is passed through the cake body from Without inwardly;

Figure 3 is a transverse section, taken in the plane indicated by the line 3 3, Figure 1;

Figure 4 is a lengthwise section of a portion of a lengthwise tier of a second form of my improved solid or non-expansible and non-contractible rubber insert, one complete insert being shown, rayon cakes mounted on the inserts for liquid treatment also being shown, this section being taken in the plane indicated by the line 4 4, Figure 5;

Figure 5 is a transverse section, taken in the plane indicated by the line 5 5, Figure 4, this View showing in full lines the cake in the form in which it is collected by the spinning machine or,

if it has been deformed by a treating liquid plane indicated by the line 6 6, Figure 4;

Figure '7 is a lengthwise section of a portion of a lengthwise tier of improved expansible and contractible rubber inserts, one complete insert being shown, protectively-wrapped rayon cakes mounted on the inserts also being shown, this view being taken in the plane indicated by the line 1 1, Figure 8;

Figure 8 is a transverse section, taken in the plane indicated by the line 8 8, Figure 7, this view showing in full lines the cake in the form in which it is collected by the spinning machine or, if it has been deformed by a treating liquid passed therethrough previously from without the package inwardly, in the form in which it reestablishes itself, or tends to be so re-established, when the treating liquid is passed from within the cake outwardly; this view also showing in broken lines the forms assumed by the different cake portions, or which they tend to assume, when the treating liquid is passed through the cake body from without inwardly; the view also suggesting in dot-and-dash lines the contracted condition of the insert when it is compressed for convenient and non-cake-damaging insertion into the cake;

Figure 9 is a transverse section, taken in the plane indicated by the line 9 9, Figure '1; and

Figure 10 is a fragmentary portion of Figure 1, showing the package elongated.

Referring to the annexed drawing in which the same parts are indicated by the same respective numbers in the different views, and particularly referring to Figures 1, 2, and 3, a solid insert I consists of a tubular column of integral construction and formed of rubber, preferably, hard rubber, and having a plurality of spaced outwardly-extended bar portions 1 upon which the rayon cake 2 is mounted for liquid treatment. The insert I is formed with an outwardly-extended flange 3, located preferably at one end of the insert I, having a peripheral bead II, thus forming a seat 6 in which the cake 2 is supported by one end. The exterior face of the cake 2, when the latter in its normal annular spun condition is mounted on the seat 6 for liquid treatment, closely engages the inner edge of the bead 4 of the flange 3, and there are formed between the exterior surface 5 of the rubber column and the cake portions between adjacent bars 1, lengthwise openings 8 which form large windows within which these cake portions may pulsate during the liquid treatment, as hereinafter explained. The exterior surfaces 5 of the inserts I are of frusto-conical formation and thus correspond to the inside face of the usual spun rayon cakes. The small upper end of an insert I loosely registers within an opening I9 formed in the bottom of the adjacently higher insert I and having a top shoulder wall I0 against which the top of the lower insert I abuts. Thus the inserts I are nested together to form a lengthwise tier of inserts. The insert I is open atbothends as indicated by the bottom opening 9 and` the top opening I8, and the openings of adjacent inserts register in a lengthwise tier of inserts I, so as to provide a continuous interior chamber I I for the passage of treating liquid through the tier.

The tubular column of each insert is formed with a multiplicity of ports I3, said ports preferably being arranged in a series of lengthwise rows and a series of transverse rows, each clearly shown in Figure l, these ports I3 opening at their inner ends into the chamber II and providing means for passage of liquid between the interior and exterior of the insert body. The bars 1 are each formed with a lengthwise series of ports 20 which register with a lengthwise series of ports I3 so that treating liquid can pass between the chamber I I and the rayon package areas located adjacently exterior of the bars 1.

When thetreating liquid is passed through the cake package 2 from without inwardly, the spaced cake portions between the respective adjacent bars 1 are moved inwardly until they Contact with the adjacently inner portions of the insert body, as indicated by the broken lines of Figure 2. The portions of the cake body immediately exterior of the bars 1 cannot move inwardly but, in fact, adjust themselves slightly outwardly, as indicated by the broken lines of Figure 2. When the treating liquid is passed through vthe cake body 2 from within outwardly, the several cake portions tend to re-establish themselves in the positions shown in full lines in Figure 2 or, if the passage of the treating liquid from within outwardly is the initial passage of liquid, the cake portions are maintained substantially in the positions shown in full lines in Figure 2, which is the normal annular spun condtion of the cake. During the early stages of. the liquid treatment the time or pressure of application thereof or the density of the package body may be such as not to permit entire penetration of the cake body by the treating liquid, so that the several package portions will only tend toward the positions shown therefor in Figure 2.

In order that entangling of the rayon threads may be' avoided during the pulsating liquid treatments, the inner wall of each seat 6 of the insert flange 3 is of curved formation, as indicated by I5, Figure l. This curved flange wall accommodates the inner lower corner of the cake package 2 when the latter has been pulsated inwardly into the openings 8. In order to insure ready and thorough distribution of the treating liquid from the bar ports 2U into the cake areas immediately exterior of the bars 1, when the liquid flow is outwardly, and in order to readily and thoroughly direct the liquid flow from these areas into the ports 2|I, when the liquid flow is inwardly, I preferably enlarge the outer ends 20 o-f the ports 2|).

In order to facilitate the assemblage, removal, and handling of the individual inserts I, each insert is preferably integrally formed with .a bar I1, preferably diametrically located within and near the top of the insert.

In order to effect an assemblage of the inserts I easily and conveniently they are nested together somewhat loosely, a small annular space I2 being left between the side wall of the recess I9 and the outer surface of the top end of the insert I which is nested in said recess I9 against the wall shoulder I thereof.

The several portions of the outer surface of the insert I between respectively adjacent bars 1 form stops limiting the amount of inward movements of the cake portions between respectively adjacent bars 1.

By the means described, a thorough liquid treatment and desirable loosening up of the whole package is secured, both of those package portions which pulsate through the openings 8 and those portions which lie radially exteriorly of the bars 1.

In Figures 4, 5, and 6, I show a form of solid or rigid rubber insert 2|, which is polygonal in cross-section, with integrally formed means for spacing the ends of adjacent packages 22 in a tier of packages, which form of insert also effects the advantageous liquid treatments of rayon packages above-mentioned. In this form of insert the means for defining the spaced transversely adjacent cake portions, which are pulsated in the respective large longitudinal window openings, are integral parts of the insert itself. The particular polygonal insert structure, shown in Figures 4, 5, and 6, is pentagonal in cross-section. 'I'he cake package 22 is mounted upon the exterior surface 25 of the insert 2|, the inner face of the annular package 22 contacting the corners of the insert 2| so that there are provided spaced large longitudinal window openings 21 between each outside surface portion of the insert 2| and the adjacently interior portions of the cake package 22. In order to effect an assemblage of the inserts 2| easily and conveniently into a lengthwise tier, these inserts 2| are nested together somewhat loosely, a small annular space 32 being formed between the side wall of a bottom end recess 36 and the outer surface of the top end of the insert 2| which abuts a base shoulder 30. Furthermore, in order to facilitate the assemblage, removal and handling of the individual inserts 2|, each of the latter is integrally formed with a bar 31, preferably diametrically located within and near the top of. the insert.

The cake package 22 is rested by one end in a recess 2B formed in an outwardly-extended peripheral flange 23 of the inse-rt 2 I, this flange 23 preferably being provided at one end of the insert 2|, and the recess 26 being formed between aperipheral bead 424 of the flange 23 and the body member of the insert 2 I. This body member of the insert 2| is atubular column formed with .a plurality of ports 33 extended through the wall thereof, preferably in a plurality of transverse series of ports and a plurality of longitudinal series of ports. Some of these ports 33 are located in the corners of the insert body 2| and are formed with enlarged outer end portions 34. The insert 2| is formed top and bottom with openings'28 and 29, respectively, and the bottom of the insert is formed with the shoulder 30 at the base of the recess 36, against which shoulder 30 abuts the top end of the adjacently lower insert 2| so that a lengthwise tier of inserts can be formed for the simultaneous treatment of a plurality of cake packages 22. Inasmuch as each one of the inserts opens at its ends into the .adjacent inserts, a continuous central treating chamber 3| is formed in the lengthwise tier of inserts.

In order that entangling of the rayon threads may be avoided during the pulsating liquid treatments, the inner wall of each seat 26 of the insert flange 23 is of curved formation, as` indicated by 35, Figure 4. This curved flange wall accommodates the inner lower corner of the cake package 22 when the latter has been pulsated inwardly into the window openings 21.

Passage of treating liquid through the package bodies in both directions pulsates the package portions between the respectively adjacent corners of the insert 2| in the respective window openings 21, the movement of these cake portions, when the liquid flow is inwardly, being indicated by the broken line showing of cake 22 in Figure 5, it being noted that the effect of the treating flow from without the cake inwardly moves the cake portions radially exteriorly of the corners of the insert 2| somewhat outwardly. When the flow of treating liquid is from within the insert 2| and outwardly through the cake body, the several portions of the cake body re-estab'lish themselves in their regular annular spun formation, as indicated by the full line showing of the cake in Figure 5, or tend to so re-establish themselves. The cake areas radially exteriorly of the several corners of the insert also receive thorough liquid treatment. by reason of the ports 33 with the enlarged outer ends 34 which are provided in the insert corners. The enlarged portions 34 of the corner ports 33 provide ready and thorough distribution of the treating liquid from the ports 33 into those areas of the package radially exterior of the insert corners, when the liquid flow is from within outwardly, and they also readily and thoroughly direct the liquid flow from such areas of the package body into the ports 33, when the direction of liquid flow is from without inwardly. The effect of the liquid treatment is thoroughly to treat and to loosen the package body, effecting a natural alteration of the relative positions of all of the thread strands comprising the package. The package so treated is free of local tension areas and non-uniform strains, so that all parts of the thread have the same reflective index and give the same color reaction when the thread isdyed. The improved insert structure provides for ready and convenient positioning thereon and removal therefrom of the package body, permits convenient assemblage of a lengthwise tier of packages for the treating of a plurality of packages, and effectively and economically liquid-treats the packages and loosens the same.

Referring particularly to Figures '1, 8, and 9, I

disclose therein a form of insert 4|, polygonal in cross-section, pentagonal in the form specifically shown in these figures, which is split and has overlapping edges 59 and 59. Thus, this insert 4| is contractible and expansible, and, for insertion within a cake package 42, can be squeezed and contracted, as shown in dot-and-dash lines in Figure 8. Preferably, this insert 4 I, when permitted to expand in the enclosing rayon package 42, is of the configuration shown in Figure 9, and also shown in full line section in Figure 8. Thus, it can be readily and conveniently and satisfactorily contracted, by a squeezing applied to the exterior surface thereof, into the configuration shown in dot-and-dash lines, Figure 8, for insertion within the rayon package 42. `I provide a strengthening section 4'| to withstand the stress of contraction and expansion of the insert 4|, this strengthening section 41 being disposed at some material distance from the overlapping edges 59 and 59', and, preferably, being disposed oppositely to the overlapping edges 59 and 59', as shown in Figure 8.

The split type of insert 4| conforms in structure and advantages to the structure and advantages of the rigid type of insert 2| shown in Figures 4, 5, and 6, in that it is formed with the integral cake-supporting outwardly-extended ange 43 having the peripheral bead 44 forming a recessI 4E within which the cake 42 is mounted upon one end. Spaced large longitudinal window openings 63, within which the pulsating of the cake 42 is effected, are defined between the adjacent corners of the insert 4| and between the adjacent outer surface portions of the insert and the inner face portions of the cake. The insert 4| is formed with respective top and bottom openings 49 and 5l) which register with corresponding openings of adjacent inserts to form a continuous internal chamber 52 within a lengthwise tier of inserts. A recess 5| in the bottom end of the insert 4| is formed with a top shoulder 51 against which the top end of the adjacently lower insert abuts. The several inserts 4| in a lengthwise tier are somewhat loosely assembled, there being a slight clearance 53 between the top of the exterior surface of a insert 4| and the laterally adjacent side wall of the recess 5|. The insert 4| is formed with a multiplicity of ports 54, preferably arranged in both transverse rows and longitudinal rows, and certain of the longitudinal rows of ports 54' intersect the corners of the insert for the purpose of effecting liquid treatment of the cake areas immediately exteriorly of the corners, and these corner ports are formed with enlarged outer portions 55 for complete and satisfactory liquid distribution outwardly and for complete and satisfactory gathering of liquid flow inwardly. To prevent entanglement of cake threads during processing, the inner wall of the recess 46 is of curved formation, as indicated by 56.

The grip member 58, which I have shown in Figures 7 and 9, for facilitating the assemblage, removal and handling of the individual inserts 4|, is U-shaped, with its extending leg members integrally formed with, and supported by, the enlarged insert-strengthening section 41, the body of the grip 58 being extended inwardly of the insert 4| and substantially half-way thereacross.

When using the expansible and contractible type of insert 4|, shown in Figures '7, 8, and 9, I preferably loosely enfold the cake package 42 in a prote-ctive covering 60, before the package 42 is mounted for liquid treatment, and preferably when lthe package is in freshly spun condition. The protective covering 60 is wrapped about the Whole package 42 and is lapped enteriorly of the package in substantially the formation shown in Figure 7. A protective covering 60 is used which permits ready passage therethrough of the treating liquid, being preferably formed of a fabric such as cheese-cloth. When the packages 42 are transversely deformed, and also expanded lengthwise, by the liquid treatment, the loose fabric wrapping 60 becomes taut and closely encompasses the package. The fabric wrapping 6l) when initially placed upon the package 42 is loose enough, as illustrated in Figure 7, to permit the packagek 42 to expand under the liquid treatment without a movement of the wrapping 60, or shifting thereof, over the package surface.

The wrapping 60 is particularly of advantage, when liquid-treating packages mounted upon inserts which have slots or recesses, wherein the thread of the package 42fmight become disarranged or entangled during processing such vas the clearance area or slot 6|, shown in Figure 7, which slot permits the expansive movement of the insert 4|, after the same has Vbeen .inserted in contracted form within the package42. The protective covering 60 prevents the disarrangeg ment or entanglement of the thread in openings, such as the slot or clearance area 6|.

An arrangement of a lengthwise tier of axiallyaligned rayon packages is suggested in Figures 1, 4 and 7, in which the packages are permitted a certain lengthwise elongation during the liquid treatment, as Well as the transverse pulsating movements hereinbefore described. The permissible lengthwise elongation of the packages is particularly important when treating freshly spun thread in the gel state. As more time elapses after the spinning of the thread and before the initial liquid treatment thereof, the tendency of the packages to elongate under liquid treatment decreases. 'I'his lengthwise elongation of the packages is particularly evident during the initial stages of the liquid treatment. It will be noted in Figures 1, 4 and '7 that the insert flanges 3, 23 and 43, respectively, are spaced apart a distance somewhat greater than the length of the freshly spun packages, so that when a plurality of the packages are assembled in a lengthwise tier, a space 62 is provided between the top of each package and the cake-supporting fiange of the adjacently higher insert. Under the liquid treatment, and particularly during the initial stages of the treatment, and more particularly when treating freshly spun thread in the gel state, the cake packages elongate so that their upper ends contact with the respectively adjacently higherr cake-support flanges, as shown in Figure 10. These spaces 62 are so limited in depth that the permissible lengthwise elongation of the packages is less in extent than the amount of elongation the packages: would make if they were permitted to elongate without restraint. In other words, the depth of a space 62 is not as great as the distance through which a package would elongate if it were not restrained and were permitted to elongate the full extent it would undergo under the liquid treatment. If perchance, the liquid pressure is such, or the density of the package is such, as to prevent reasonable easy penetration of the package body by the treating liquid, then, during the initial stages of the liquid treatment, the space 62 provides pressure-relief by permitting treating liquid to escape therethrough and thus by-pass the package body until the package has become somewhat more porous andhas been loosened up both lengthwise and transversely and has closed the space 62. If desired, the permissible maximum amount of longitudinal elongation, determined by the depth of the space 62, may be coordlnated with the depth of the window openings 8, 2'land 63, determined by the inner diameter of the package'and the outer diameter of the insert I, 2| or 4I', so as to provide the desired loosening of the package through the combined elongation and inward movement thereof.

What I claim is:

1. Package inserts adaptable for the mounting of ne filamentous thread 'inl annular package form comprising a rubber shell provided with a multiplicity of ports and With spaced outwardlyextended rubber barsl integrally formed with the shell, the adjacent spaced bars being spaced apart a distance suiilcient to form openings permitting substantial portions of the.` package to move inwardly relatively to the shell, under the action of a treating liquid. Y .2. Package inserts adaptable for the mounting of ne filamentous thread in annular` package form comprising a rubber shell provided with a multiplicity of ports and with spaced outwardlyextended rubber bars integrally formed with the shell, the adjacent spaced bars being spaced apart a distance suiiicient to form openings permitting subtantial portions of the package to move inwardly relatively to the shell, under the action of a treating liquid, said bars being provided With ports having liquid communication with the interior and exterior of the shell.

3. Package inserts adaptable for the mounting of iine filamentous thread in annular package form consisting of an integrally formed rubber column and a package-supporting flange outwardly-extended therefrom, said column having a passage therethrough and having a multiplicity of ports communicating with said passage, saidV column being provided with spaced outwardly-extended rubber bars inegrally formed therewith for holding portions of the inner face of a package mounted on the column at spaced distances exteriorly of the exterior of the column, in the normal annular shape of the package, the adjacent spaced bars being spaced apart a distance suiiicient to formopenings permitting substantial portions of the package to move inwardly relatively to the column, under the action of a treating liquid.

CHARLES A. HU'I'TINGER. 

